Using schematically heterogeneous structures
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
Mediators in the architecture of future information systems
Readings in agents
Information Integration Using Logical Views
ICDT '97 Proceedings of the 6th International Conference on Database Theory
Querying Heterogeneous Information Sources Using Source Descriptions
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
Object Fusion in Mediator Systems
VLDB '96 Proceedings of the 22th International Conference on Very Large Data Bases
A survey of approaches to automatic schema matching
The VLDB Journal — The International Journal on Very Large Data Bases
Query relaxation for xml model
Query relaxation for xml model
Learning to match ontologies on the Semantic Web
The VLDB Journal — The International Journal on Very Large Data Bases
ITCC '04 Proceedings of the International Conference on Information Technology: Coding and Computing (ITCC'04) Volume 2 - Volume 2
Concept-based querying in mediator systems
The VLDB Journal — The International Journal on Very Large Data Bases
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
Using semantics to bridge the information and knowledge sharing gaps in virtual engineering
KES'10 Proceedings of the 14th international conference on Knowledge-based and intelligent information and engineering systems: Part II
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Despite the fact that ontologies are a good idea for interoperation, existing e-Learning systems use different ontologies for describing their resources. Consequently, exchanging resources between systems as well as searching appropriate ones from several sources is still a problem. We propose the concept of correspondences in addition to metadata standards. Correspondences specify relationships between ontologies that can be used to bridge their heterogeneity. We show how we use them for building evolvable federated information systems on e-Learning resources in the World Wide Web. Beside this integration scenario, we also describe other interoperation scenarios where correspondences can be useful.